Details
| Original language | English |
|---|---|
| Pages (from-to) | 948-958 |
| Number of pages | 11 |
| Journal | Journal of materials science |
| Volume | 53 |
| Issue number | 2 |
| Publication status | Published - 22 Sept 2017 |
Abstract
Localized oxidation and corrosion behavior of a nickel–titanium (NiTi) shape memory alloy (SMA) was investigated via static immersion experiments in a simulated body fluid solution. Detailed electron microscopy examinations on the sample surfaces revealed preferential formation of local oxide particles around dislocation networks, which constitute high-energy zones. Moreover, various intermediate phases were detected in addition to the parent NiTi phase around dislocation networks. These are also areas with enhanced diffusion, which promotes Ni release. These findings emphasize the significant role of fine microstructural features, such as dislocation networks, on the oxidation and Ni release, and thus, the biocompatibility of the NiTi SMAs.
ASJC Scopus subject areas
- Materials Science(all)
- General Materials Science
- Engineering(all)
- Mechanics of Materials
- Engineering(all)
- Mechanical Engineering
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In: Journal of materials science, Vol. 53, No. 2, 22.09.2017, p. 948-958.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Effects of microstructural mechanisms on the localized oxidation behavior of NiTi shape memory alloys in simulated body fluid
AU - Toker, S. M.
AU - Gerstein, G.
AU - Maier, H. J.
AU - Canadinc, D.
PY - 2017/9/22
Y1 - 2017/9/22
N2 - Localized oxidation and corrosion behavior of a nickel–titanium (NiTi) shape memory alloy (SMA) was investigated via static immersion experiments in a simulated body fluid solution. Detailed electron microscopy examinations on the sample surfaces revealed preferential formation of local oxide particles around dislocation networks, which constitute high-energy zones. Moreover, various intermediate phases were detected in addition to the parent NiTi phase around dislocation networks. These are also areas with enhanced diffusion, which promotes Ni release. These findings emphasize the significant role of fine microstructural features, such as dislocation networks, on the oxidation and Ni release, and thus, the biocompatibility of the NiTi SMAs.
AB - Localized oxidation and corrosion behavior of a nickel–titanium (NiTi) shape memory alloy (SMA) was investigated via static immersion experiments in a simulated body fluid solution. Detailed electron microscopy examinations on the sample surfaces revealed preferential formation of local oxide particles around dislocation networks, which constitute high-energy zones. Moreover, various intermediate phases were detected in addition to the parent NiTi phase around dislocation networks. These are also areas with enhanced diffusion, which promotes Ni release. These findings emphasize the significant role of fine microstructural features, such as dislocation networks, on the oxidation and Ni release, and thus, the biocompatibility of the NiTi SMAs.
UR - http://www.scopus.com/inward/record.url?scp=85029760826&partnerID=8YFLogxK
U2 - 10.1007/s10853-017-1586-4
DO - 10.1007/s10853-017-1586-4
M3 - Article
AN - SCOPUS:85029760826
VL - 53
SP - 948
EP - 958
JO - Journal of materials science
JF - Journal of materials science
SN - 0022-2461
IS - 2
ER -